Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Mist

39°F

4°C

Humidity	100%
Wind Speed	ENE 5 MPH
Barometer	30.23 in (1023.71 mb)
Dewpoint	39°F (4°C)
Visibility	1.00 mi
Wind Chill	35°F (2°C)
Last update	30 Dec 05:20 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles E Hercules CA

Cold Weather Advisory until December 30, 09:00am

Dense Fog Advisory December 30, 05:44am until December 30, 10:00am

Click here for hazard details and duration

Cold Weather Advisory

Dense Fog Advisory

Cold Weather Advisory until December 30, 09:00am
Dense Fog Advisory December 30, 05:44am until December 30, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 37 °F
Mostly Cloudy
Tuesday
High: 48 °F
Mostly Cloudy
Tuesday Night
Low: 43 °F
Cloudy then
Slight Chance
Rain
Wednesday
High: 49 °F
Rain
Wednesday Night
Low: 46 °F
Rain
New Year's Day
High: 54 °F
Rain and
Patchy Fog
Thursday Night
Low: 52 °F
Showers and
Patchy Fog
Friday
High: 55 °F
Showers

Detailed Forecast

Overnight

Mostly cloudy, with a low around 37. East northeast wind around 10 mph.

Tuesday

Mostly cloudy, with a high near 48. East northeast wind 11 to 14 mph, with gusts as high as 20 mph.

Tuesday Night

A 10 percent chance of rain after 4am. Cloudy, with a low around 43. East wind 9 to 13 mph, with gusts as high as 18 mph.

Wednesday

Rain, mainly after 10am. High near 49. East northeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 46. East northeast wind around 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. Patchy fog after 4pm. High near 54. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain before 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog before 7pm. Low around 52. Chance of precipitation is 80%.

Friday

Showers likely and possibly a thunderstorm, then rain after 10am. Cloudy, with a high near 55.

Friday Night

Rain. Cloudy, with a low around 48.

Saturday

Rain likely. Mostly cloudy, with a high near 52.

Saturday Night

Rain likely. Cloudy, with a low around 44.